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Osoyoos September Weather

Averages and records for weather in Osoyoos, British Columbia in the month of September.

Typical Osoyoos September Weather 1991–2020
Average daily high	24.3 °C
Average daily low	9.6 °C
Average monthly precipitation	1.4 cm
Average monthly snow	none
Daily chance of precipitation	20.0%
Daily chance of snow	0%

Osoyoos September Weather Records 1954–2024
Highest temperature	36.5 °C	September 2, 2022
Lowest temperature	-2.2 °C	September 22, 1960
Highest daily low	20.0 °C	September 20, 1967
Lowest daily high	8.3 °C	September 29, 2019
Hottest average high temperature	27.4 °C	1998
Coldest average high temperature	19.7 °C	1985
Most daily precipitation	3.0 cm	September 22, 1973
Most monthly precipitation	6.5 cm	1966
Most daily snow	none	-
Most monthly snow	none	-

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
September 1	27.2	11.8	35.6	5.0
September 2	27.0	11.7	36.5	5.6
September 3	26.8	11.5	34.0	5.0
September 4	26.5	11.4	33.1	3.9
September 5	26.3	11.3	35.2	3.9
September 6	26.1	11.1	34.1	2.5
September 7	25.9	10.9	33.0	2.5
September 8	25.8	10.7	33.5	2.2
September 9	25.6	10.6	32.8	2.8
September 10	25.4	10.5	33.3	3.3
September 11	25.2	10.3	33.3	2.8
September 12	25.0	10.2	32.9	1.9
September 13	24.8	10.0	33.2	0.6
September 14	24.6	9.8	31.3	3.3
September 15	24.4	9.7	30.6	3.0
September 16	24.2	9.5	31.9	1.7
September 17	24.0	9.3	30.5	-0.6
September 18	23.7	9.2	32.5	2.0
September 19	23.5	9.0	31.7	0.6
September 20	23.2	8.9	30.6	-0.5
September 21	23.0	8.7	31.7	1.7
September 22	22.8	8.5	30.6	-2.2
September 23	22.6	8.4	32.2	0.0
September 24	22.3	8.2	32.5	-1.1
September 25	22.0	8.1	30.0	0.0
September 26	21.7	7.9	29.0	-0.6
September 27	21.4	7.7	30.0	-0.5
September 28	21.1	7.5	27.8	-1.5
September 29	20.8	7.4	28.0	-1.5
September 30	20.5	7.2	26.9	-0.5

Weather Station Details

Years	Station	Coordinates
2009–2024	Osoyoos CS	location
1968–2008	Osoyoos West	location
1954–1967	Osoyoos	location